Revenue Recognition - Schedule of ASC 606 Impact on Balance Sheet (Details) - USD ($) $ in Millions	Sep. 29, 2018	Dec. 31, 2017
Assets
Inventories	$ 885.3	$ 806.9
Prepaid expenses and other current assets	359.5	203.2
Total current assets	2,768.8	2,819.6
Total assets	10,942.9	11,628.8
Liabilities and Shareholders’ Equity
Other non-current liabilities	423.7	429.5
Total non-current liabilities	3,789.4	4,022.2
Total liabilities	5,282.9	5,458.2
Accumulated deficit
Accumulated deficit	(1,919.7)	(1,975.5)
Total controlling interests	5,659.8	6,170.5
Total shareholders’ equity	5,660.0	6,170.6
Total liabilities and shareholders' equity	10,942.9	$ 11,628.8
Adjustments | Accounting Standards Update 2014-09
Assets
Inventories	19.1
Prepaid expenses and other current assets	(28.8)
Total current assets	(9.7)
Total assets	(9.7)
Liabilities and Shareholders’ Equity
Other non-current liabilities	(0.2)
Total non-current liabilities	(0.2)
Total liabilities	(0.2)
Accumulated deficit
Accumulated deficit	(9.5)
Total controlling interests	(9.5)
Total shareholders’ equity	(9.5)
Total liabilities and shareholders' equity	(9.7)
Balances without adoption of ASC 606
Assets
Inventories	904.4
Prepaid expenses and other current assets	330.7
Total current assets	2,759.1
Total assets	10,933.2
Liabilities and Shareholders’ Equity
Other non-current liabilities	423.5
Total non-current liabilities	3,789.2
Total liabilities	5,282.7
Accumulated deficit
Accumulated deficit	(1,929.2)
Total controlling interests	5,650.3
Total shareholders’ equity	5,650.5
Total liabilities and shareholders' equity	$ 10,933.2